On August 25, 1894, Chicago catcher William Schriver caught a baseball thrown from the top of the Washington Monument (555 ft, 898 steps).

Part A.) If the ball was thrown horizontally with a speed of 7.50 m/s , where did it land?

Part B.) What was the ball's speed of motion when caught?

Part C.) What was the ball's direction of motion when caught?

On August 10, 1972, a large meteorite skipped across the atmosphere above the western United States and western Canada, much like a stone skipped across water. The accompanying fireball was so bright that it could be seen in the daytime sky and was brighter than the usual meteorite trail. The meteorite's mass was about 4.2 × 10⁶ kg; it's speed was about 16 km/s. Had it entered the atmosphere vertically, it would have hit Earth's surface with about the same speed. (a) Calculate the meteorite's loss of energy (as a positive number, in joules) that would have been associated with the vertical impact. (b) Express the energy as a multiple of the explosive energy of 1 megaton of TNT, which is 4.2 × 10¹⁵ J. (c) The energy associated with the atomic bomb explosion over Hiroshima was equivalent to 13 kilotons of TNT. To how many Hiroshima bombs would the meteorite impact have been equivalent?

Two long parallel wires carry currents of 2.0 A and 3.0 A in the same directions.
The wires are separated by 50 cm. At what point between the two wires the total
magnetic field is zero? Please backup your solution with a picture!

Determine the intensity of a 120-dB sound. The intensity of the reference level required to determine the sound level is 1.0

Explain how you can reproduce an isothermal process in a laboratory. Also discuss an experiment to produce isobaric process. Which of the above two experiments is easier to reproduce?

A object of height 3.3 cm is placed 36.1 cm in front of a spherical mirror. Suppose it is desirable to produce a virtual image that is upright and 1.4 cm tall.

(a) Should a concave or convex mirror be used?

b) Where is the image located?

c) What is the focal length of the mirror?

d) What is the radius of curvature of the spherical mirror?

An old-fashioned (vinyl) record rotates at a constant rate of 33 rpm.

(a) What is its angular speed in rad/s?
rad/s

(b) If the record has a radius of 9 cm, what is the linear speed of a point on its edge?
m/s

Why are intermediate mass black holes so uncommon compared to stellar mass and supermassive black holes? What techniques can astronomers use to find them?

Planets do not twinkle because

A. they emit light of a constant intensity B. their distance from the earth does not change with time C. they are very far away from the earth resulting in decrease in intensity of light D. they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable

when firing a proton (for example) to an atomic nucleus, from a distance D, the deflection angle of the proton ? to the type of changes atomic nuclei? or always constant?

Please answer the following:

How does the Heimlich Maneuver mimic forced expiration?

At one time it was fashionable for women to wear corsets to cinch in their waistlines. These corsets would be laced tightly around the midsection. -Describe how wearing a corset could affect pulmonary ventilation and alveolar ventilation rate. Include Boyle’s law, as well as the pressures and physical structures that are involved in ventilation in your answer.

Hydrogen bonding between water molecules is essential for lung expansion to occur but also increases resistance during inspiration. Explain this contrast by describing the locations and how hydrogen bonding plays a positive and negative role in ventilation.

An object is placed 35.5 cm to the left of a converging lens of focal length 18.8 cm. A second lens, which is diverging and has a focal length of -88.8 cm is placed at a certain distance d to the right of the first lens.

A) where is the image of the object formed by the first lens and what is its magnification?

B) If the distance d=53.6 cm, where is the final image of the object? What are the properties of the image?

C) If the distance d=25.9 cm, where is the final image of the object? What are the properties of the image?

D) If in part B the lenses are reversed, where is the final image of the object and what are the properties of the image?

During the Apollo XI Moon landing, a retroreflecting panel was erected on the Moon's surface. The speed of light can be found by measuring the time it takes a laser beam to travel from Earth, reflect from the panel, and return to Earth. If this interval is found to be 2.505 s, what is the measured speed of light? Take the center-to-center distance from Earth to Moon to be 3.84 ? 108 m. Assume that the Moon is directly overhead and do not neglect the sizes of the Earth and Moon.